Tapeigaster nigricornis
In 3 days ~10% in a week ~20%
Tapeigaster nigricornis is a species of fly in the family Heleomyzidae. It is endemic to Australia, occurring in New South Wales, Queensland, South Australia, Tasmania, Victoria, and Western Australia. It is the most commonly seen species of Tapeigaster.
Adult T. nigricornis are medium-sized flies with bodies measuring 6 mm (0.24 in) long and wings measuring between 5–7 mm (0.20–0.28 in) long. The antennae are black, measuring slightly shorter than the face, with long, bare arista. All bristles on the head and thorax are black. The frons is yellow at the front of the head and red towards the back, with two bright white stripes bordering the eyes. The thorax is reddish-brown, with a grey longitudinal stripe running down the middle of the mesoscutum from the neck to the scutellum and a grey band running from near the neck to the base of the wing on each side. The halteres are white with a reddish stalk and the scutellum is reddish-brown with a dusting of grey. The femora are reddish but covered with a grey dust (pruinescence) that sometimes appears shiny. The fore and hind femora are moderately swollen, but the mid femora are not and appear visibly thinner. All femora... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Otway National Park | 🇦🇺 Australia |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Melbourne | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Tapeigaster nigricornis sighting in Melbourne on a given day, based on 35 verified sightings from GBIF citizen-science data. It is the 307th most-seen of the 875 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Tapeigaster nigricornis in Melbourne on a given day, so our monthly data shows no clear season.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Tapeigaster nigricornis sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Melbourne, in our data
Melbourne is the only city on Wallace's Line with enough records to rate Tapeigaster nigricornis sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Tapeigaster nigricornis is recorded against all the insects logged in Melbourne (35 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
